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B12 (Methylcobalamin) 10mg specification card: catalogue reference, CAS number, molecular formula and purity

Cofactors & Small Molecules

B12 (Methylcobalamin) 10mg — Research Compound Canada

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Methylcobalamin is the methylated coenzyme form of vitamin B12, the cofactor for methionine synthase. It is studied for one-carbon metabolism, homocysteine remethylation and myelin maintenance.

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  • Same-day dispatch before 2 PM PT from British Columbia, Canada
  • Free shipping over CA$200
  • Batch-specific COA with every lot
  • Priced in Canadian dollars

B12 (Methylcobalamin) 10mg specification

Release specification

Catalogue number
OP-076
Purity specification
>99%
Fill
10mg

Identity and structure

CAS number
13422-55-4
Molecular formula
C₆₃H₉₁CoN₁₃O₁₄P
Molecular weight
1,344.4 g/mol

Additional specifications

Form
Lyophilized powder
Solubility
Soluble in bacteriostatic water
Shelf Life
24 months from date of manufacture

About B12 (Methylcobalamin) 10mg

Vitamin B12 exists in several forms, and methylcobalamin is the one that functions directly as a cofactor without requiring intracellular conversion, which distinguishes it from cyanocobalamin in experimental work. It supports methionine synthase in the remethylation of homocysteine to methionine, the reaction that regenerates S-adenosylmethionine and links B12 status to methylation capacity generally. The cobalt-corrin structure makes it light-sensitive, so the amber vial and dark storage are functional requirements rather than convention.

Storing and handling B12 (Methylcobalamin) 10mg

Store lyophilized peptide at -20°C in a dry, dark environment. Reconstitute in bacteriostatic water. Once reconstituted, store at 2-8°C and use within 30 days. Avoid repeated freeze-thaw cycles. Lyophilized powder is stable at room temperature for shipping and short-term storage.

Shipping B12 (Methylcobalamin) 10mg within Canada

Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day. Parcels leave British Columbia, Canada and travel entirely within the country, arriving in two to five business days with a tracking number on every one. Orders over CA$200 ship free; see the shipping page for the dispatch cut-off and transit window.

B12 (Methylcobalamin) 10mg questions

Are research peptides like B12 (Methylcobalamin) 10mg legal in Canada?

B12 (Methylcobalamin) 10mg is supplied here strictly as a reference material for in vitro laboratory research. For laboratory research use only. Not for human or veterinary use. Canadian law turns on what a substance is represented and supplied for, which is why that restriction is on the label, the invoice and every page of this site. The full framework, and what a research-use designation does and does not change, is set out on our legality page.

Is B12 (Methylcobalamin) 10mg shipped from within Canada?

Yes. Every B12 (Methylcobalamin) 10mg order leaves British Columbia, Canada and travels entirely within the country. Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day. Transit after dispatch is 2–5 business days Canada-wide, with a tracking number on every parcel, and orders over CA$200 ship free.

Does B12 (Methylcobalamin) 10mg come with a certificate of analysis?

Yes — the certificate for the lot in your box, not a representative certificate for a different batch. Every B12 (Methylcobalamin) 10mg lot is released against a >99% HPLC specification, and the document carries the lot number, the issuing laboratory and the analytical method. Certificates are not published on this site; if you need another copy, ask us for it by lot number.

How is B12 (Methylcobalamin) 10mg supplied and stored?

As a lyophilised powder in a sealed vial, which is the form that survives shipping without a cold chain. Unopened vials are stored away from light and moisture; the storage and handling page covers the laboratory conditions in full. We publish no dosing, reconstitution volumes or administration guidance of any kind.

What fill is B12 (Methylcobalamin) 10mg supplied in?

B12 (Methylcobalamin) 10mg is supplied in a single 10mg fill, released against a >99% specification.

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